Reclosable end structure for container body

ABSTRACT

A reclosable container closure for a container having an end closure ring seamed to the container body. The ring has an inward extending seating flange closure disc which is sealed to the flange during shipment and separated therefrom when the container is first opened. The closure disc also is provided with a peripheral ring of pressure sensitive adhesive suitable for holding the closure disc in position to seal the container after it is first opened. The closure disc may be formed from a plurality of laminae, the top lamina being arranged to provide a pull tab foldable out the plane thereof. The bottom lamina may be of metal to give proper stiffness to the closure disc.

United States Patent Roy E. Rogers [72] lnventor Glendale, Mo. [21]Appl. No. 879,238 [22] Filed Nov. 24, 1969 [45] Patented Dec. 21, 1971[73] Assignee Container Corporation of America Chicago, Ill.

[54] RECLOSABLE END STRUCTURE FOR CONTAINER BODY 3 Claims, 4 DrawingFigs.

[52] US. Cl 220/53, 229/43, 229/51 [51 Int. Cl 865d 17/24, B65d 5/64,B65d 43/00 [50] Field of Search 229/43, 51 AB, 62; 220/53 [56]References Cited UNITED STATES PATENTS 3,317,068 5/1967 Betner 229/43 XPrimary ExaminerGeorge T. Hall AttorneyCarpenter, Ostis and LindbergABSTRACT: A reclosable container closure for a container having an endclosure ring seamed to the container body. The ring has an inwardextending seating flange closure disc which is sealed to the flangeduring shipment and separated therefrom when the container is firstopened. The closure disc also is provided with a peripheral ring ofpressure sensitive adhesive suitable for holding the closure disc inposition to seal the container after it is first opened.

The closure disc may be formed from a plurality of laminae, the toplamina being arranged to provide a pull tab foldable out the planethereof, The bottom lamina may be of metal to give proper stiffness tothe closure disc.

' /4 L2 /3 I i I /2 I F164 I w PATENTEuniczwn 3528.689

INVENTOR.

ROY E. ROgE/PS W, 0= BY EH5 /5- RECLOSABLE END STRUCTURE FOR CONTAINERBODY BACKGROUND OF THE INVENTION l. Field of the Invention Thisinvention relates to improvements in containers having a metal endclosure ring beaded thereto. Said ring has an inwardly extending seatingflange affording a support for an easily detached laminated closurehaving two concentric rings of adhesive, one being employed at the timethe container is first filled and closed, and the other being employedto provide a seal for subsequent opening and reclosing of the container.

2. The Prior Art The broad concept of having a closure structureincluding a ring seamed to the end of a container body and a laminatedclosure disc sealed to the ring is shown in Griese US. Pat. Nos.3,ll,765; 3,245,576 and 3,245,765. None of these patents showscooperation of the seamed metal ring with a removable closure having twoconcentric rings of adhesive, one being pressure sensitive for areusable sea], and the other being a strippable seal used only beforethe container is opened.

SUMMARY OF THE INVENTION The invention herein is especially adapted foruse with containers from which part of the contents may be removed fromtime to'time. Containers for coffee are an example. The structureaccording to the invention contemplates a container having a flangedring which is beaded to the container body. The ring affords a seat fora removable disc-type closure having two concentric rings of adhesive,one being employed to hold the disc to the ring prior to containeropening and the other being employed for subsequent sealing after thecontainer is initially opened. A feature of the invention lies informing the closure of laminae, one lamina being scored and liftablefrom the plane thereof to provide a pull tab, and another being used tostiffen the closure disc.

THE DRAWING FIG.. 1 is an end plan view of a container having areclosable end structure according to the present invention;

FIG. 2 is a longitudinal section taken along the line 2-2 of FIG. 1looking in the direction of the arrows;

FIG. 3 is a detailed sectional view, to an enlarged scale, of a part ofthe closure disc; and

FIG. 4 is a detailed sectional view, to an enlarged scale, of an edgeportion of the closure disc.

The end structure according to the present invention is referred to bythe reference numeral and has a beaded connection 12 to a container bodyI]. The latter may be formed of fibrous material such as helically woundkraft paper and is appropriately lined, if desired, with an imperviouslining. The construction of the container body 11 forms no part of thepresent invention and is accordingly not described in detail.

The end structure 10 has an opening therein, and comprises an inner face13 continuous with flange 14 of convoluted configuration and continuouswith a wall 16 essentially parallel to the longitudinal axis of thecontainer body 11. Wall 16 is continuous with a seating flange l7, andthe opening 15 is defined by a bead flange 18.

The end structure 10 includes a closure disc 20 comprised of a firstlamina 19 and a second lamina 21, the two lamina being joined by anadhesive film 22. The underside of lamina 21 may be covered with a foilbarrier 23 such as aluminum foil. Closure disc 20 is preferablystiffened with a stiffening lamina 24 made preferably of metal.Stiffening lamina 24 has a diameter which is less than the diameter ofthe opening 15 as seen in FIG. 2.

If desired, the upper surface of lamina 19 may be covered with anydesired label 26. Structure is provided for enabling closure disc 20 tobe removed readily from its position on seating flange l7, and to thisend the upper lamina 19 has an essential] U-shaped full score 27 thereinwith a, connecting bight 2 connecting the limbs of the U-shaped score27. A circular full score 28 is provided within the bight 29, and thestructure thus far described defines a pull tab 30. In order to providehinging of the pull tab 30 with respect to the lamina 19, the fullscores 27 are each continuous with partial scores 31.

The periphery of the closure disc 20 is provided with an upturned flange32 adapted to seat against the wall 16. As seen more particularly inFIG. 4, closure disc 20 has a pair of concentric lines of adhesive 33and 34 on the lower face thereof, adhesive 33 being interposed betweenclosure disc 20 and the seating flange l7, and being for the purpose ofholding closure disc 20 in place prior to the first removal thereof fromseating position on seating flange 17. Adhesive 33 is a stiffable sealwhich when broken is no longer effective for rescaling.

The second ring of adhesive 34 is pressure sensitive and is located atthe underside of the closure disc 20 at the periphery 32 thereof, andbetween closure disc 20 and the wall 16. Adhesive ring 34 is adapted tohold closure disc 20 in position after the first removal thereof fromseating flange 17. Thereafter, it affords easy removal of closure disc20 and rescaling of disc 20 as desired.

lclaim:

1. An end structure adapted to be secured to a container body, said endstructure comprising:

a. means for securing said end structure to said container body;

b. a central opening in said end structure defined by inwardly extendingseating flange;

c. a closure disc for said opening including:

i. first adhesive means disposed on a face of said closure disc andinterposed between said closure disc and said seating flange for holdingsaid closure disc in place prior to a first removal thereof from seatingposition on said seating flange;

ii. second adhesive means disposed on a face of said closure disc, saidsecond adhesive means being pressure sensitive and being adapted to holdsaid closure disc in position after the first removal thereof from saidseating flange, and providingfor subsequent detachment of said closureand rescaling of said container.

2. An end structure adapted to be secured to a container body, said endstructure comprising:

a. means for securing said end structure to said container body;

b. a central opening in said end structure defined by inwardly extendingseating flange;

c. a closure disc for said opening including:

i. first adhesive means disposed on said closure disc and interposedbetween said closure disc and said seating flange for holding saidclosure disc in place prior to a first removal thereof from seatingposition on said seating flange;

ii. second adhesive means disposed on said closure disc, said secondadhesive means being pressure sensitive. and being adapted to hold saidclosure disc in position after the first removal thereof from saidseating flange, and providing for subsequent detachment of said closureand rescaling of said container.

iii. said first and second adhesive means being concentrically disposedon said disc.

3. A structure according to claim 2 wherein said first adhesive means islocated adjacent the edge of said central opening and said secondadhesive means is located adjacent the edge of said closure disc.

1. An end structure adapted to be secured to a container body, said endstructure comprising: a. means for securing said end structure to saidcontainer body; b. a central opening in said end structure defined byinwardly extending seating flange; c. a closure disc for said openingincluding: i. first adhesive means disposed on a face of said closuredisc and interposed between said closure disc and said seating flangefor holding said closure disc in place prior to a first removal thereoffrom seating position on said seating flange; ii. second adhesive meansdisposed on a face of said closure disc, said second adhesive meansbeing pressure sensitive and being adapted to hold said closure disc inposition after the first removal thereof from said seating flange, andproviding for subsequent detachment of said closure and resealing ofsaid container.
 2. An end structure adapted to be secured to a containerbody, said end structure comprising: a. means for securing said endstructure to said container body; b. a central opening in said endstructure defined by inwardly extending seating flange; c. a closuredisc for said opening including: i. first adhesive means disposed onsaid closure disc and interposed between said closure disc and saidseating flange for holding said closure disc in place prior to a firstremoval thereof from seating position on said seating flange; ii. secondadhesive means disposed on said closure disc, said second adhesive meansbeing pressure sensitive and being adapted to hold said closure disc inposition after the first removal tHereof from said seating flange, andproviding for subsequent detachment of said closure and resealing ofsaid container. iii. said first and second adhesive means beingconcentrically disposed on said disc.
 3. A structure according to claim2 wherein said first adhesive means is located adjacent the edge of saidcentral opening and said second adhesive means is located adjacent theedge of said closure disc.